During a three-year absence from his home in Shreveport, his mother Marty loses more than 100 pounds, looks great, and to Henry's embarrassment, has become a party animal.
He's posing as a consultant, but he's an international art thief, in town to steal "Mother and Son," a Bernini sculpture.

Henry is detailed to head a team keeping his mom's new boyfriend under surveillance.
Love, law enforcement, and filial devotion are set to collide.
(That's a 31-year age difference, if you're counting.) Lowndes later hinted that their coupling was an April Fools' joke.
Here's a look at some other surprising celeb pairings. CEO Rupert Murdoch, 84, and former model Jerry Hall, 59, married Friday, March 4. Hall was previously in a lengthy relationship with rocker Mick Jagger, with whom she has four children.
She continues: 'Antonio was supportive to the extent that he can be, but if you're not an alcoholic or drug addict, and you find out that your wife is a bad one, it's hard to deal with. I wish he would go to a meeting with me or to Al-Anon, but it's very foreign to him.
The Internet has been startled to hear that comedian Jon Lovitz, 58, and model Jessica Lowndes, 27, say they're engaged.
Ryan subsequently established herself, both nationally and internationally, as one of the most successful actresses in the 1990s and early 2000s, particularly in romantic comedy films such as Sleepless in Seattle (1993), French Kiss (1995), You've Got Mail (1998), and Kate & Leopold (2001).
Her other films include The Doors (1991), When a Man Loves a Woman (1994), Courage Under Fire (1996), Addicted to Love (1997), City of Angels (1998), Proof of Life (2000), and The Women (2008). She has two sisters, Dana and Annie, and a brother, musician Andrew Hyra, a member of the band Billy Pilgrim.
Unfortunately, "My Mom's New Boyfriend" falls way below the grade and fails even at being mildly amusing.
First, it isn't necessary for a movie like this to be smart or particularly realistic, but it should have some integrity so that we can actually believe in the characters.
After her film debut in George Cukor's Rich and Famous, Ryan played Betsy Stewart in the daytime drama As the World Turns, from 1982 to 1984, and her character was featured in a popular romantic story arc.